Quantity | Value | Units | Value | Units |
<Z/A> | 0.47966 | |||
Specific gravity (20° C, 1 atm) | 0.950 | g cm-3 | ||
Mean excitation energy | 126.6 | eV | ||
Minimum ionization | 1.668 | MeV g-1cm2 | 1.584 | MeV cm-1 |
Nuclear collision length | 66.9 | g cm-2 | 70.45 | cm |
Nuclear interaction length | 101.3 | g cm-2 | 106.6 | cm |
Pion collision length | 93.2 | g cm-2 | 98.06 | cm |
Pion interaction length | 131.5 | g cm-2 | 138.4 | cm |
Radiation length | 27.12 | g cm-2 | 28.55 | cm |
Critical energy | 50.36 | MeV (for e-) | 48.99 | MeV (for e+) |
Molière radius | 11.42 | g cm-2 | 12.02 | cm |
Plasma energy | 19.45 | eV | ||
Muon critical energy | 699. | GeV |
Elem | Z | Atomic frac* | Mass frac* |
6 | |||
9 | |||
17 | |||
* calculated from mass fraction data. |